ThequestionissoimportantthatIwillrestateit。Ihaveimaginedaworldmadeupofpsychicalphenomena,freedfromthematerialconditionsunderwhichaloneweknowsuchphenomena。Canweadduceanyproofofthepossibilityofsuchaworld?Orifwecannot,doesourfailureraisetheslightestpresumptionthatsuchaworldisimpossible?
Thereplytothefirstclauseofthequestionissufficientlyobvious。Wehavenoexperiencewhateverofpsychicalphenomenasaveasmanifestedinconnectionwithmaterialphenomena。WeknowofMindonlyasagroupofactivitieswhichareneverexhibitedtousexceptthroughthemediumofmotionsofmatter。Inallourexperiencewehaveneverencounteredsuchactivitiessaveinconnectionwithcertainverycomplicatedgroupingsofhighlymobilematerialparticlesintoaggregateswhichwecalllivingorganisms。Andwehaveneverfoundthemmanifestedtoaveryconspicuousextentsaveinconnectionwithsomeofthosespeciallyorganizedaggregateswhichhavevertebrateskeletonsandmammaryglands。Nay,more,whenwesurveythenetresultsofourexperienceuptothepresenttime,wefindindisputableevidencethatinthepasthistoryofthevisibleuniversepsychicalphenomenahaveonlybeguntobemanifestedinconnectionwithcertaincomplexaggregatesofmaterialphenomena。
Asthesematerialaggregateshaveagebyagebecomemorecomplexinstructure,morecomplexpsychicalphenomenahavebeenexhibited。ThedevelopmentofMindhasfromtheoutsetbeenassociatedwiththedevelopmentofMatter。Andto-day,thoughnoneofushasanyknowledgeoftheendofpsychicalphenomenainhisowncase,yetfromallthemarksbywhichwerecognizesuchphenomenainourfellow-creatures,whetherbruteorhuman,wearetaughtthatwhencertainmaterialprocesseshavebeengraduallyorsuddenlybroughttoanend,psychicalphenomenaarenolongermanifested。Fromfirsttolast,therefore,ourappealtoexperiencegetsbutoneresponse。WehavenotthefaintestshadowofevidencewherewithtomakeitseemprobablethatMindcanexistexceptinconnectionwithamaterialbody。Viewedfromthisstandpointofterrestrialexperience,thereisnomorereasonforsupposingthatconsciousnesssurvivesthedissolutionofthebrainthanforsupposingthatthepungentflavouroftable-saltsurvivesitsdecompositionintometallicsodiumandgaseouschlorine。
Ouranswerfromthissideisthusunequivocalenough。Indeed,souniformhasbeentheteachingofexperienceinthisrespectthatevenintheirattemptstodepictalifeafterdeath,menhavealwaysfoundthemselvesobligedtohaverecoursetomaterialisticsymbols。Tothemindofasavagethefutureworldisamerereproductionofthepresent,withitseverlastinghuntingsandfightings。TheearlyChristianslookedforwardtoarenovationoftheearthandthebodilyresurrectionfromSheoloftherighteous。Thepicturesofhellandpurgatory,andevenofparadise,inDante’sgreatpoem,aresointenselymaterialisticastoseemgrotesqueinthismorespiritualage。Butevento-daythepopularconceptionsofheavenarebynomeansfreedfromthenotionofmatter;andpersonsofhighculture,whorealizetheinadequacyofthesepopularconceptions,arewonttoavoidthedifficultybyrefrainingfromputtingtheirhopesandbeliefsintoanydefiniteordescribableform。Notunfrequentlyoneseesasmileraisedattheassumptionofknowledgeorinsightbypreacherswhodescribeineloquenttermsthejoysofafuturestate;yetthesmiledoesnotnecessarilyimplyanyscepticismastotheabstractprobabilityofthesoul’ssurvival。Thescepticismisaimedatthecharacterofthedescriptionratherthanattherealityofthethingdescribed。Itimpliesatacitagreement,amongcultivatedpeople,thattheunseenworldmustbepurelyspiritualinconstitution。Theagreementisnothabituallyexpressedindefiniteformulas,forthereasonthatnomentalimageofapurelyspiritualworldcanbeformed。Muchstressiscommonlylaidupontherecognitionoffriendsinafuturelife;
andhoweverdeepameaningmaybegiventothephrase“theloveofGod,“onedoesnoteasilyrealizethataheavenlyexistencecouldbeworththelongingthatisfeltforit,ifitweretoaffordnofurtherscopeforthepureandtenderhouseholdaffectionswhichgivetothepresentlifeitspowerfulthoughindefinablecharm。Yettherecognitionoffriendsinapurelyspiritualworldissomethingofwhichwecanframenoconceptionwhatever。Wemaylookwithunspeakablereverenceonthefeaturesofwifeorchild,lessbecauseoftheirphysicalbeautythanbecauseofthebeautyofsoultowhichtheygiveexpression,buttoimaginetheperceptionofsoulbysoulapartfromthematerialstructureandactivitiesinwhichsoulismanifested,issomethingutterlybeyondourpower。Nay,evenwhenwetrytorepresenttoourselvesthepsychicalactivityofanysinglesoulbyitselfascontinuingwithouttheaidofthephysicalmachineryofsensation,wegetintounmanageabledifficulties。Agreatpartofthecontentsofourmindsconsistsofsensuouschieflyvisualimages,andthoughwemayimaginereflectiontogoonwithoutfurtherimagessuppliedbyvisionorhearing,touchortasteorsmell,yetwecannotwellseehowfreshexperiencescouldbegainedinsuchastate。Thereader,ifherequirefurtherillustrations,caneasilyfollowoutthislineofthought。Enoughhasnodoubtbeensaidtoconvincehimthatourhypothesisofthesurvivalofconsciousactivityapartfrommaterialconditionsisnotonlyutterlyunsupportedbyanyevidencethatcanbegatheredfromtheworldofwhichwehaveexperience,butisutterlyandhopelesslyinconceivable。